PLATE LIV 



Fig. I. — Ascochyta clematidina: Photomicrograph of a pycnidium from stained sec- 

 tion of a leaf of Clematis paniculata. 



Fig. 2. — Ascochyta clematidina: Culture growing on agar to which Ivory soap at the 

 rate of i pound to 1 5 gallons of water was added , showing the oily film about the margin 

 of the culture in which the crystals of stearic acid are found. 



